Remove null array before correct json in php -
i want echo php array in json format in back-end. when print it, shows
[][][][][][][][][][][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][][][][][][][][][][] [][][][][][][][][][][][][][][][][][][][][][][][][] [][][][ { "user":"root", "pid":"31692", "ppid":"31691", "elapsed":"00:05", "vsz":"1072408", "%cpu":"6.2", "state":"s", "command":"\/opt\/iims_client\/utils\/nfstop --rpc --interval 60 --sample 2 --mount all\n" },{ "user":"ctxsrvr", "pid":"29309", "ppid":"5152", "elapsed":"9-07:51:37", "vsz":"605648", "%cpu":"0.3", "state":"s", "command":"\/opt\/citrix\/vda\/bin\/ctxgfx -session 87\n" }] , not need null array before "user", how can remove them? thanks. here code:
elseif(preg_match("/<toptenproc>/",$line)){ $line=fgets($file,1024); $line=ltrim($line); $header=preg_split('/\s+/',$line); while(!((preg_match("/<\/toptenproc>/",$line)))){ $line=fgets($file,1024); $line=ltrim($line); $vars=preg_split('/\s+/',$line,8); // echo $vars[5]; array_push($result, array($header[0] => $vars[0], $header[1] => $vars[1], $header[2] => $vars[2], $header[3] => $vars[3], $header[4] => $vars[4], $header[5] => $vars[5], $header[6] => $vars[6], $header[7] => $vars[7])); } // $result = (object) array_filter((array) $result); echo json_encode($result);
your first regular expression checks <toptenproc>
second regular expression checks </toptenproc>
if ending tag hasn't been encountered yet, shouldn't echoing anything. solution should simple checking array size before echoing anything:
if(count($result)) { echo json_encode($result); } alternative, can put $whileloopran = false; before loop,
put $whileloopran = true; inside loop , preform echo when loop ran. people prefer $i++; use "i" instead, whatever floats boat.
it's possible, you're echoing , should outside elseif, after loop finishes.
if you're trying parse xml, should using xml parser anyways, not regexp.
Comments
Post a Comment